Eaton FRN-R-100 Fuse - RK5 Time-Delay, 200 kAIC
Part Number: FRN-R-100
Quick Summary
Eaton FRN-R-100 fuse protects industrial motor circuits with a time-delay RK5 design. Engineers often battle nuisance trips and miscoordination in variable-load panels, which can cause downtime and misprotection. CE Marked and RoHS compliant through Eaton's standards, the FRN-R-100 delivers reliable protection while meeting safety and environmental requirements. With 100 A rating and an interrupt rating of 200 kAIC at 250 Vac, plus dual-element construction, it provides robust fault clearance without sacrificing startup tolerance. This fuse supports downstream protection strategies in automation cabinets, variable frequency drives, and power distribution, helping minimize maintenance costs and maximize equipment uptime.
Product Information
Extended Description
FRN-R-100 Eaton: Eaton Bussmann Series Class RK5 fuse, FRN-R, time-delay, dual-element, current limiting fuse, 100 A, non-indicating fuse, interrupting rating of 200 kA at 250 Vac
Product Name
Eaton Bussmann series FRN-R fuse
Catalog Number
FRN-R-100
UPC
051712101851
Product Length/Depth
2.1 in
Product Height
0.54 in
Product Width
0.54 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
100 A
Interrupt rating
20 kAIC at 125 Vdc 200 kAIC at 250 Vac
Response time
10 sec at 500%
Voltage rating
250 Vac, 125 Vdc
Number of elements
Dual
Packaging type
Standard
Class
Class RK5
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Fusetron FRN-R RK5 fuse data sheet for fuses 70 to 600 amps No. 1020
Time-delay, dual-element design enables inrush tolerance while protecting circuits, reducing nuisance trips and improving selectivity for motors and drives in automation environments. Business impact: steadier operation during startup surges and better protection coordination with upstream devices. Application: motor starters, conveyors, and power feeds in control panels. The 100 A rating paired with a 200 kAIC at 250 Vac interrupt rating ensures reliable fault clearance for feeders and critical loads, lowering the risk of arc faults and equipment damage. Application: feeder protection in automation cabinets and machine zones. Its compact 2.1 in length and blade-end connections simplify panel install and service, enabling higher connector density and faster replacements—benefiting line efficiency and maintenance costs. The non-indicating fuse minimizes nuisance alarms while offering a clear fault signal when needed; response time is 10 seconds at 500% to balance tripping and uptime. Compliance with CE and RoHS standards supports standardized procurement and global deployments. Class RK5 compatibility and standard packaging support easy cross-referencing with Bussmann-series inventories and replacement programs.
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FAQs
FRN-R-100 is a Class RK5 fuse with blade-end connections designed for Bussmann RK5 holders. It fits standard RK5 fuse blocks used in control panels and motor control centers, enabling straightforward replacement and consistent electrical coordination with upstream protection.
The FRN-R-100 provides a 100 A amperage rating with a 200 kAIC interrupt rating at 250 Vac, and a time-delay response around 10 seconds at 500% overload to tolerate startup surges while protecting circuitry.
Yes. The FRN-R-100 is CE marked and RoHS compliant via Eaton’s RoHS tooling, ensuring conformity with safety and environmental regulations for international installations.
Ideal for motor protection in automation cabinets, drives, and feeders where startup inrush occurs. The RK5 class and dual-element design provide reliable protection without nuisance trips, improving uptime and asset life.
Its compact 2.1 in length, 0.54 in width/height, and blade-end connections support dense panel layouts and quick replacements. Reduced downtime from dependable protection, combined with easy sourcing via standard catalogs, delivers measurable maintenance cost savings.